Vitamin D, crucial for bone health, immunity, and overall well-being, is often deficient globally. Sunlight exposure, certain ...

How much vitamin D is enough? Over the past decade, rickets has re-emerged as a noticeable public health issue in some areas (Lanham-New et al, 2010) and many physicians have been ordering lab ...

Vitamin D and cholesterol share a complex relationship. While vitamin D may help lower cholesterol levels, some studies ...

The potential role of vitamin D in preventing and treating colorectal cancer (CRC) has attracted growing research ...

By Fernando Riveron, MD Consider the miracle  that cells in your skin can gather up solar radiation in the form of sunlight ...

Vitamin D also helps blood vessels stay flexible and elastic. When blood vessels can relax and stretch easily, blood flows ...

In short, those vitamin D supplements may help you stay sharp now and through the years. All of this said, you can certainly have too much of a good thing regarding vitamin D supplements.

This essential vitamin is generally considered safe, even at high doses. However, most people get enough B12 through diet alone, and unnecessary supplementing may lead to negative side effects.